Damper for furnaces



` (No Modem 2 sheets-sheet 2..

W. LANYON, Jl-, 8v J. LANYON. DAMPER FOR FURNAGES.

Patented Jan. 20, 1891.

MHT-

UNITED STATES PATENT OFFICE.

WILLIAM LANYON, JR., AND .IOSIAH LANYON, PI'ITSBURG, KANSAS.

DAM PER FOR FU RNACES.

SPECIFICATION forming part of Letters Patent No. 444,958, dated January 20, 1891.

Application filed June 26, 1890. Serial No. 356,833. (No model.)

To all whom, t may concern.:

Be it known that We, WILLIAM LANYON, J r., and JosIAH LANYON, of Pittsburg, in the county of Crawford and State of Kansas,have invented certain new and useful Improvements in Dampers for Furnaces, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part thereof.

Our invention relates to an improved damper for furnaces; and it consists in the novel combination and arrangement of parts, as will be hereinafter more fully described and claimed.

In the drawings, Figure 1 is a side elevation of our invention. Fig. 2 is a front elevation showing one-half of the furnace. Fig. 3 is a vertical longitudinal section of the damper, furnace, and stack. Fig. 4 is a top plan View of our invention. Fig. 5 is a side elevation of the damper detached, and Fig. 6

is a top plan view of thesame.

Referring to the drawings, 1 represents a furnace of Well-known construction, to which our invention is applied, and 2 is a vertical passage formed in the top of the said furnace, leading to and connected with the casing 3, within which the vertically-sliding valve is located.

3 represents the casing for the valve, which is mounted on the top of the furnace, and is provided with a throat 4 at or near the top of the said furnace, which throat connects the said stock with the smoke-stack 5, thereby forming a passage for the escaping products of combustion.

6 represents a vertically-sliding valve or damper, which moves within the casing 3 and is incased thereby. Around the upper end of the damper 6 is formed a flange 7, which iiange is of such a size as to allow the said damper to move freely within the casing 3, and yet prevent to a degree the escape of gases issuing from the furnace. Through the flange 7 are formed a suiiicient number of vertical openings S, through which air passes and causes a greater portion of the smoke and gases to be burned or consumed before entering the smoke-stack.

9 represents a vertical channel formed in the valve 6, and within which a rod 10 is securely fastened by means of bolts 11, passing through the said valve and rod. To the upper end of the rod 10 is attached a chain 12, which leads upward, and is connected to a horizontal lever 13 for raising and lowering the damper 6, as may be desired. The horizontal lever 13 is pivoted to any suitable device above the furnace by means of abolt 14, which lever supports the valve 6. To the opposite ends of the lever 13 is attached a rope, chain, or other-like device 15, connected to a suitable reel 16, attached to the front or other convenient place of the furnace, by means of which the valve 6 is operated at the will of the operator.

In carrying out our invention it will be seen that the damper 6 is located directly over the outlet 2 of the furnace, causing the smoke and flame issuing from said furnace to strike the bottom of the damper, thereby holding the gases in the furnace and consuming a greater portion of them, thereby saving a great amount of fuel. The flange 7, formed on the top of the damper 6, guides the said damper Within the casing 3 and prevents the escape of heat and gas.

By means of the construction of damper as shown it is impossible for clinkersto choke the said damper and prevent its free working.

By locating the damper and casing for the -same in contact with the outer air the same is prevented from breaking, which. is a common occurrence with the ordinary valves or dampers now in use.

Having fully described our invention, what We claim is-s 1. The combination of the casing 3, located over the discharge-opening of a furnace and leading to the outer air, the smoke-stack 5, the throat 4, connecting said casing and smoke-stack, with the valve. 6, sliding in the casing, a flange at the upper end of said valve, vertical apertures 8 in said flange, a central opening in said valve, a rod 10, secured therein, and a device secured to said rod to operate the damper, as described.

2. A damper for furnaces, consisting of a casing located over the discharge -passage leading from the furnace and in contact with the outer air, a sliding valve'located therein, a flange on the upper end of said valve, ap-

ertures in said flange leading`from Jthe outer air to the interior of the casing, a central ver- Icical opening in the valve, a rod secured therein, and a device connected to the said rod to operate the valve, as described.

3. A damper for furnaces, consisting of a vertically-sliding valve located directly over a discharge-passage leading; from a furnace, 'a ange surrounding the said valve and provided with vertical openings, and a device for operating the said valve, substantially as described.

4. A damper for furnaces, consisting of a casing located over the discl1arge-passage leading from the furnace and in Contact with the outer air, a sliding valve located therein, a verLical opening formed therein, a rod secured Within the said opening, and a chain or other device connected to Jhe said rod by means of Which the valve is operated, substanbially as described.

In testimony whereof We aix our signatures in presence of two Witnesses.

VILLIAM LANYON, JR. JOSIAH LANYON. Witnesses:

N. G. ROMBAUER, GEO. W. KILLAM. 

